Alarm-bell.



no. 634,727. Patented not. lo, |899. f' z f. Ham. ALARM BELL.

(n l d l (Applicion alud Fa. 1, 1899.)

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f To all whom, it may concern;

UNITED STATES reunieron HEIN, oF'oLEAN, yNEW PATENT OFFICE. l

YORK.

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SPECIFICATION forming part of Letzterer-'aient No. 634,727, dated october io, ieee.

I Application filed February 1, 1399. Serial No. 704,163. (No modelJ Be it known-that I, FREDRICK HEIN, of

Olean, county of Catiaraugus, and State of.

New York, have invented certainy new and usefullmprovemen ts in Alarm-Bells, of which the following is a full, clear, and exact speciiication, reference being had to the accom panying drawings, wherein- Figure 1 is an elevation, Fig. 2 a side view,

and Fig. 3 a detail view, of the alarm-operat ing mechanism.

My invention relates to signaling devices; and it consists of the hereinafter-described apparatus for audibly signaling when water in a tank or receptacle reaches a certain predetermined level. A

The apparatus consists of a bell, an automatic spring-movement for ringing the bell, and of mechanism for arresting and releasing the movement of the bell by a floating weight suspended in the tank and acting upon a crank-lever secured tothe arbor of the bellmovement- The bell-movement is mounted between plates 1 and2, which are combined by studs 8 into a frame that may be secured in place by screws 4 passing through lugs 5, which are integral with the back plate 2. The bellmovement is actuated by spring 6, wound aroundshaft 26 and having one end secured to this shaft and the other to one of the studs 3. The end of shaft .26 projecting from the plate 1 is square or otherwise adapted to receive a key27, by means of which the spring to left.

is wound np by turning the shaft from right When released, the spring strives to unwind, and thereby imparts to the shaft a rotary motion in opposite direction. On the same shaft 26 is` set a cog-wheel and is coupled thereto by ratchet-wheel 8, which is rigidly secured to the shaft, and pawl 9, pivotally secured to Wheel 7 and pressed against the ratchet-Wheel S by spring 10. vShaft l13 is mounted above the shaft 26, and on this shaft rotate the escapement-wheel 12 and pinion 11, which is integral therewith. The teeth of wheel 7 mesh with the teeth of the pinion 11, and thus wheel 7 drives the escapement--Wheel 12. Escapement 15 is secured to oscillating arbor 14:, which is mounted to one side of and above shaft 13. Pal- -lets 16 and 17 of the escapernent 15 engage alternately with the teeth of the escapeinent:

' wheel12 and receive thereby a reciprocating motion ,which isimparted to the arhor14 when the escapement-Wheel12 is rotated. Stem 23 of the striker 2i is rigidly secured 'to the sameV other end is weighted by suspending floater 19 from it. This floater is of such Weight as vto produce 'siillicient pressure upon the pallet 1'7 to overcome the driving forceof the escapement-wheel 12,while its full weight acts on the end of the lever 1S. Crank-lever 18 is suitably bent, so that when the'alarm apparatus is aflixed on the outside of the tank the iioater 19 swings in the tank. Floater 19 is provided with a stem 20, which is passed through eye 21, provided on the end of the crauk-lever 1S, and is held in engagement with the lever by knob 22, secured to the stem. Then the water rises in the tank to a predetermined level, it reaches the iioater 19, it relieves lever 18 from its weight,and as thereby the pressure exerted bypallet 17upon the escapem en t-Wheel12 ceases the bell-nuove- -nient is set free and rings the bell, thus announcing that the water in the tank has reached the predetermined level.

To insure raising the lioat-er in a vertical motion, I provide the sleeve 26 in connection with the eye 21, whereby any twisting tendency and friction in the operation of the apparatus are avoided.

The alarm acts when the level of the water reaches the predetermined level, which is intank, and continues 'to actas long as the level of the water remains aboveits desired height. The construction of the apparatus is very simple and very effective and reliable for the purpose designated.

I claim as lnyinvention and desire to secure Aby Letters Patent l. Au apparatus, for audibly signaling when the water in a tank or receptacle reaches a i certain predetermined level, the apparatus consist-ing of a bell, an automatic movement for ringing the bell, comprising au escapement-wheel, an arbor and an eseapement se-` escapement secured thereto and engaging` with the escapement-wheel, and means for driving the escapement-Wheel, of a crank-lever-secured to the arbor, an eye on the free end of the lever, a floating Weight having; a stem engaging with the eye of the crank-1ever, a removable head vsecured to the stem above the eye of the crank-lever and holding the floating 'weight constantly engaged with Athe lever whereby the pallet of the escapement is held against the teeth of the escapement-Wheel.

FREDRICK HEIN, iVitnesses:

WM. N. STEPHAN, FIDEL REIGER. 

